pa-824 has been researched along with 4-nitrobenzonitrile* in 1 studies
1 other study(ies) available for pa-824 and 4-nitrobenzonitrile
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Release of nitrite from the antitubercular nitroimidazole drug PA-824 and analogues upon one-electron reduction in protic, non-aqueous solvent.
The one-electron reduction chemistry of the antituberculosis drug PA-824, together with a series of closely related compounds, has been investigated in irradiated anaerobic propan-2-ol solution. The protic solvent, of low dielectric constant, was chosen to mimic the environment of a water-restricting active site of a model protein, which is capable of reducing the compounds. Radiolytic reduction of the compounds containing electron donating substituents in the 2-position of the imidazole ring released nitrite, with compounds that are highly active against Mycobacterium tuberculosis exhibiting high yields of nitrite. The release of cytotoxic reactive nitrogen species through a one-electron pathway, by as yet unidentified proteins, may play a role in the activity of this class of compounds against TB. The described radiolytic quantification of nitrite release may have utility as a preliminary screening test for nitroaromatic candidate drugs against the disease. Topics: Aerobiosis; Antitubercular Agents; Electron Transport; Hypoxia; Mass Spectrometry; Mycobacterium tuberculosis; Nitriles; Nitrites; Nitrobenzenes; Nitroimidazoles; Pulse Radiolysis; Reactive Nitrogen Species; Solvents; Spectrophotometry, Ultraviolet; Water | 2010 |